Stereotype-plate casting box



Sept. 8, 192s. 1,553,021

H. F. BECHMAN STEREOTYPE PLATE CASTING Box Original Filed Oct. 10, '1922Patented Sept. 8, 1925,

UNITED STATES PATENT OFFICE.

HENRY F. BECKMAN, OF BATTLE CREEK, MICHIGAN, ASSGNOR TO DUPLEX PRINTINGPRESS COMPANY, OF BATTLE CREEK, MICHIGAN, .A CORPORATION 0F MICHIGAN.

STEREOTYPE-PLATE CASTING BOX.

Application mea october 1o, 1922, serial 110.593,56?. Renewed Jamie,1925.

To aZZ whom t may concern:

Be it known that I, HENRY F. BECHMAN, a citizen of the United States,residing at Battle Creek, in the county of Calhoun and State ofMichigan, have invented vcertain new and useful Im rovements inStereotype-Plate Casting oxes; and l hereby declare that the followingis a full, clear, and exact description thereof, reference being had` tothe accompanying drawings, which form part of this specification.

This invention isV an improvement in stereotype plate-casting boxes ofthe type shown in my Patent #853,752, of March' 14th,'19o7.

The objects of thepresent invention are to insure plates of uniformthickness; to automatically spread the matrix in the mold previous tothe casting operation; to improve the form of the cope so that the inflowing metal itself will also tend to spread the matrix in the mold;and to do away with the necessity of using any tail piece or pouringsheet to direct the metal into the mold.

The present invention embodies novel i1np rovements in the constructionof the cope, the drag, and the matrix positioning dcvices, asAillustrated in the vaccompanying drawings and hereinafter described;and the novel features of construction and novel combinations of partsfor which protection is desired are set forth in the claims follow-V ingthe description.

In said drawings: Y*

Fig. l is a top plan view of the upper part of the cope and drag of acasting box, closed ready for pouring.

Fig. 2 is a part vertical sectional view on the line 2-2 Fig. l, showingthe matrix in place.

Fig. 3 is apart vertical sectional-view on the line 3 3 Fig. l.

Fig. 4- is an enlarged detail sectionl onthe line L -4 Fig. 3.

The cope and drag of the casting box may be constructed and arranged tooperate sul stantially as described in my aforesaid patent, but improvedas hereinafter pointed out, and therefore it is unnecessary toillustrate the entire casting box in the drawings. Only the upperportions of the cope and drag are shown, as these will sufiice, inconnection with the following explanation thereof, to

impart a full understanding of the invention.` 'i

As shown stantially as in my said patent with the exception that itsupper portion is slightly contracted in internal diameter, as shown inFigs. 2 and 3, about one eighth inch, just labove the upper edge of thematrix when in splashing thereof. This flange does awayl with the loosetail piece (or pouring sheet) which is ordinarily used for this purpose.

As shown, the copel is constructed substantially as described in myaforesaid patent,`but its upper portion 1b (which projects above thematrix M when the box is closed, see Fig. 2)` is slightly contracted ininternaly diameter forming ,an outwardly flaring shoulder or ledge la atthe lowerend of part 1b, said shoulder approximately coinciding withandlying opposite the shoulder 22t of the drag when the box is closed. Asthe molten metal descends the space between the cope and drag it strikesthe shoulder la and is deflected thereby against the inside sur.-V faceof the matrix M and forces the latter outwardly and closely against theinner wall of the drag below the shoulder 2a.. The contracted portion1"' ofthe cope provides for a greater thickness of the casting at itsupper or waste end above the matrixwhich thickened portion forms thehead or sprue of the cast plate, which head is removed during thefinishing operations on the plate.

l.The upper end of the part 1* of the cope l is also beveled as shown'at1G, adjacentthe flanges 2"' when the box is closed. The space betweenthe tapered portion 1c and the flange 2b forms a mouth into which themolten stereotype metal can be easily poured to fill the mold in castinga plate.

The matrix M may be of any suitable kind, and is placed in the drag 2below the .Shoulder i2?, and may be confinedbetween,

the drag 2 is constructed` subing bars hinged to the drag adapted to andcope, and matrix looking bars hinged 10 clamp the edges of the matrixwhen the boX to the drag, substantially as described. is closed. l0. Ina stereotype casting box as set 9. A stereotype casting box comprising a'forth in claim 9, springs adapted to engage drag, and a cope, the dragbeing slightly the opposed edges of the matrix and position contractedin internal diameter above the it in the drag, substantially asdescribed. l5 matrix holding portions, and the cope hav- In testimonythat I claim the foregoing as ing its upper end reduced in diameter opmyown, I aixmy signature.

posite the contracted portions of the drag l HENRY F. BECI-IMAN.

